How Long Does It Take for a Sea Urchin to Develop

Sea urchins can be raised from egg to egg in the laboratory. With proper food, the larvae can be grown to maturity in about 3 weeks. When mature larvae are exposed to the proper chemical cues metamorphosis occurs. Over the next 5 days the small urchins develop internal organs and then begin to feed.

How long does it take for a sea urchin to fully develop?

Sea urchin offspring can take up to six years to reach their full maturity, during which time they must look out for predators such as starfish and sea otters.

What is the life cycle of a sea urchin?

Life Cycle: Purple Sea Urchins usually live up to 30 years or longer. They breed around January to March every year. The female sea urchins can produce up to twenty million eggs in one year. When the female sea urchins lay their eggs, the young urchins start off as larvae.